package com.ilancuo.thinkinjava.chapter_21;

import java.util.concurrent.TimeUnit;

/**
 * Created by ilancuo on 2018/8/12.
 */
class Daemon implements Runnable {
    private Thread[] t = new Thread[10];

    @Override
    public void run() {
        for (int i = 0; i < t.length; i++) {
            t[i] = new Thread(new DaemonSpawn());
            t[i].start();
            System.out.println("DaemonSpawn " + i + " started. ");
        }
        for (int i = 0; i < t.length; i++) {
            System.out.println("t[" + i + "].isDaemon() = " + t[i].isDaemon() + ". ");
        }
        while (true)
            Thread.yield();
    }
}

class DaemonSpawn implements Runnable {

    @Override
    public void run() {
        while (true)
            Thread.yield();
    }
}

public class Daemons {
    public static void main(String[] args) throws InterruptedException {
        Thread d = new Thread(new Daemon());
        d.setDaemon(true);
        d.start();
        System.out.println("d.isDaemon() = " + d.isDaemon() + ", ");
        TimeUnit.SECONDS.sleep(1);
    }
}